package org.liurq.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String  paymentInfo_OK(Integer id){
        return "线程池：" + Thread.currentThread().getName() + "paymentInfo_OK id:" + id;
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String  paymentInfo_Timeout(Integer id){
        int a = 10/0;
        try{
            int timeNum = 3000;
            TimeUnit.MILLISECONDS.sleep(timeNum);
        }catch (Exception e){
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_Timeout id:" + id;
    }

    public String  paymentInfo_TimeoutHandler(Integer id){
        return "线程池：" + Thread.currentThread().getName() + " 8001 paymentInfo_TimeoutHandler id:" + id;
    }


    // 熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",
            commandProperties = {
                    @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),
                    @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),
                    @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),
                    @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "30")
            }
    )
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("运行异常 id 不能为负数");
        }
        String sernum = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "调用成功，流水号" + sernum;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id不能负数，请稍候再试 id " + id;
    }
}
